Xray T1 EVO2 Set-Up Book Download

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Oiill::

•

• TThhiicckkeerr ooiill - slower shock action -- slower chassis

weight transfer from side to side or front to rear.
In general, the slower shock action means less
traction, but the slower weight transfer means the
car is less likely to get unsettled with sharp
direction changes, like chicanes.

•

• TThhiinnnneerr ooiil - faster shock action -- faster chassis

weight transfer. Faster shock action means that
the suspension can work faster to keep the tire in
contact with the surface quicker; that means more
traction. But it also means the chassis is more
susceptible to chassis roll and getting unsettled in
sharp direction changes.

Keep in mind that thicker oil will require the use of heavier springs to
compensate for the heavy damping action. Likewise, thinner oil requires
lighter springs.

Pistons:

•

• LLeessss ppiissttoonnss ooppeenn:: acts much like using thicker oil.
•

• M

Moorree ppiissttoonnss ooppeenn:: acts much like using thinner oil.

TIRES & INSERTS

Tires and inserts are probably the most important factors in getting the best
performance from your car; getting them right is the first thing you should
do. When you arrive at the track with a basic car set-up, select the best tires
and inserts for your track, then fine-tune your set-up. Check with the other
racers who frequent your track for a good starting point. As a general
guideline, use treaded or radial pattern tires on dusty or unprepared
surfaces, and use slicks on high-traction prepared surfaces.

Here  are  a  few  basic  rules:  Select  the  rubber  compound  according  to  the
track temperature. Higher temperatures usually require harder compounds.
Firm inserts are better for quick direction changes, since they'll scrub off less
speed in high-speed chicanes. Soft inserts give a little more grip, and they
also  make  the  car  easier  to  slide:  the  difference  between  gripping  and
slipping (one end sliding out) isn't as harsh. Soft inserts allow you to 'throw'
the  car  into  the  corner,  and  they  probably  make  the  car  easier  to  drive.
Sponge-type  inserts  are  much  lighter,  (less  rotating  mass  means  quicker
acceleration), but they don't retain heat as well. So it's more likely that the
tires will overheat towards the end of the race. Molded inserts are heavier,
but they retain heat better.

Regularly rotate your tires from side to side for even wear. If the same
compound and inserts are used on all four corners, then rotate front to rear
as well.

Final Adjustments

NOTE: Never use the lower of the
two holes that are on top of each
other in the outer position. Use of
the lower hole will severely restrict
the front end ride height.

Initial setting:
Front shocks - middle position (#2),
both front arms.

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Shock absorber damping influences the responsiveness of the chassis during
cornering, and helps to maintain proper contact between the tire and the
road surface during vertical movement. Setting the right damping is therefore
always a compromise and requires a lot of "hands on" experience.
No shock damping means that the spring rate determines how long it takes
for the spring to compress and the suspension to reach a stable position.

Damping only comes into play when the suspension is moving, and loses its
effect when the suspension has reached a stable position. When the spring
is compressed or decompressed, the shock absorber oil resists this
movement. The two factors that determine the speed at which the shock
reacts are the thickness of the oil and the piston valving (the number of holes
in the shock piston the oil passes through).

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Disconnect  the  lower  shock  mount
from the arm. Fully extend the shock
rod  and  turn  it  slightly  to  lock  the
piston in the shock body.
• Turning  the  shock  rod  fully  C

aligns 4 holes in the pistons =
ssoofftteesstt ddaam

mppiinngg.

• Turning the shock rod fully C

aligns only 1 hole in the pistons =
hhaarrddeesstt ddaam

mppiinngg.

The XRAY adjustable shocks have 4
settings, each of which can be felt by
a little "click".

Initial settings:
Front shocks: 2 holes open (medium)
Rear shocks: 4 holes open (lightest)

Final Adjustments

FULLY EXTEND THE SHOCK ROD

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